Collecting container for waste materials



FIG. 1 is a front perspective view of a collecting container for waste materials showing my new design;

FIG. 2 is a rear perspective view thereof, with the hatch removed and shown in exploded condition;

FIG. 3 is an enlarged fragmentary front perspective view thereof with the lid in open condition. 

The ornamental design for a collecting container for waste materials, as shown and described. 